Manchester Memoirs, Vol. xli. (1897), No. 13. 19 



shagreened and with four irregular longitudinal keels; the 

 oblique apex shagreened. Propleurae shining ; the meso- 

 pleurae shining above, shagreened below ; the top pro- 

 jecting, oblique ; a keel runs down the base from the 

 tubercles; the metapleurae closely longitudinally strio- 

 lated. Legs shining, sparsely haired ; the base of the 

 hind spurs thickly covered with stiff pale hairs. Wings 

 clear hyaline ; the nervures blackish ; the first transverse 

 cubital is sharply elbowed from a little below the middle 

 towards the apex of the cellule, the second straight, the 

 third curved roundly toward the base of the cellule ; the 

 first recurrent nervure is received shortly beyond the 

 middle of the cellule, the second near the basal third. 



SPHEGID^. 

 DlODONTUS STRIOLATUS, sp. nov. (PL 16, f. 3). 



Niger, mandibulis, tegulis, geniculis, tibiis tarsisque 

 flavis ; alis hyalinis, nervis stigmateque fuscis. 6. Long, 

 fere 5 mm. 



Hab. Lahore (Rothney). 



Antennae entirely black, almost bare ; the apex of the 

 scape fuscous. Head shining, the front and vertex with 

 fine, distinctly-separated punctures ; mandibles yellow, 

 the extreme base black, the teeth piceous-black; the palpi 

 yellow; the clypeus projecting, roundly and deeply incised 

 in the middle. Thorax shining, faintly aciculated above ; 

 the propleurae with stout, distinctly separated striae ; the 

 apical half of the mesopleurae closely longitudinally 

 striated, the striations becoming closer together at the 

 apex; the metapleurae, except at the base beneath, more 

 strongly and irregularly striolated. The apex of the four 

 front femora, the tibiae and tarsi, testaceous ; the middle 

 tibiae infuscated behind; the hinder tibiae blackish ; 

 the hinder tarsi infuscated. Wings short, not reaching 



